Buying Land for a Tiny Home in Unincorporated San Diego County
Unincorporated San Diego County now lets a qualifying tiny home on wheels be your main home. That has a lot of people shopping for land. A cheap lot isn't a good deal if you can't get water, power or septic to it, so here's what to look for before you buy.
Ready to start? Fill out the Zen Tiny Homes Buyers Application or call Zen Tiny Homes at 760-492-0742.
Where to Look
Unincorporated communities are outside city limits, so County rules apply. Popular areas for land shoppers include:
North County inland: Valley Center, Ramona and nearby rural areas.
East County: Lakeside, Jamul, and the community of Alpine.
Backcountry: Julian, Campo and similar mountain and high-desert communities.
Each area has its own mix of zoning, water sources and fire risk, so check every lot one by one.
What to Look For in a Lot
1. Legal access
The County requires a tiny home on wheels to sit on private land, not in a County road right-of-way (Director's Determination). Make sure the lot has legal access and a road a delivery truck can use.
2. Utilities, or a real plan for them
The County's tiny home on wheels rules call for connections to electric, water and sewer, with building permits. Ask the seller what's at the lot line today. Bringing power or water a long way can cost more than the home.
3. Septic and wells
No sewer? You'll likely need a septic system. In San Diego County, every project that uses septic goes through County environmental health review, with soil, percolation and groundwater testing by a qualified professional. The County also permits private wells and checks that drinking water meets standards.
4. Zoning basics
A tiny home on wheels can go on any lot that allows a single-family home, but the County's rule doesn't change how many homes a lot can have. Used as your main home, it must meet main-house setbacks and zoning. You can look up a lot's zoning in the County's online Property Summary Report using its parcel number (APN).
5. Fire areas
Much of backcountry San Diego is in a fire hazard zone. The Property Summary Report also shows a lot's fire hazard severity zone. The County's tiny home rules already require fire-safe walls, a Class A roof, dual-glazed windows and fire sprinklers for a main home.
Land Checklist
Confirm the lot is in an unincorporated area.
Check zoning and fire hazard zone in the Property Summary Report.
Confirm legal access and a truck-friendly road.
Find out what utilities reach the lot line.
No sewer? Budget for septic testing and design.
No water line? Ask about a well and its records.
Find a flat spot for a paved pad at least 6 feet from other buildings.
Book a $500 site assessment before you close.
How Zen Tiny Homes Helps
$500 site assessment: we check access, delivery, utility hookups and what fits your lot.
Plans: the Alpine (a flex plan in 20', 22' or 24', from $50K), the Mammoth (up to 30', from $75K), the Container (from about $40K), or Custom. All Zen Tiny Homes are built to ANSI standards.
Build and delivery: built off-site, then delivered to your land.
Reserve your spot: a $500 deposit holds your place on the build list.
Learn the rules for living full-time: Live Full-Time in a Tiny Home on Wheels in Unincorporated San Diego County. New to all this? Start with 7 Steps to the Tiny Home Dream, or read Can I Put a Tiny Home on My Own Land in California?
Related Guides
Frequently Asked Questions
Can I put a tiny home on wheels on vacant land in San Diego County?
In unincorporated areas, a qualifying tiny home on wheels can be a primary home on a lot that allows a single-family home, once a building permit is issued. It must meet the County's tiny home rules, setbacks and zoning.
Can I live off-grid in a tiny home in San Diego County?
The County's tiny home on wheels rules call for connections to electric, water and sewer with building permits. Rules vary by property; Zen's $500 site assessment checks what fits your lot.
What if the land has no sewer?
Many rural lots use a septic system. In San Diego County, any project using septic goes through County environmental health review, with soil and groundwater testing by a qualified professional.
Which areas are unincorporated?
Communities like Ramona, Julian, Valley Center, Lakeside, Jamul, Campo and the community of Alpine are outside city limits, so County rules apply there.
Floor Plan Preview
Here's a look at two of the designs Zen Tiny Homes can build. Every plan can be adjusted to fit your lot.
Beach House: 3D exterior
Beach House: floor plan
See all the layouts in California Tiny Home Floor Plans.
Found a Lot You Like?
Have Zen look at it before you buy. Our $500 site assessment checks access, utilities and what fits your lot.
Prefer to talk? Call Zen Tiny Homes at 760-492-0742 or visit zentinyhomes.com.
This guide is general information, not legal advice. Rules change and vary by property. Zen's $500 site assessment checks what fits your lot, or call 760-492-0742.
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